Protector and smash-preventing mechanism for looms.



7 PATENTED FEB. 5, 1907. v R. GROMPTON. h PROTECTOR AND $MASH PREVENTINGMEOHANISMFOR LOOMS.

APPLICATION FILED MAY 19, 1906.

.' 2 SHBETB-QHBET 1.

Java-6a No. 842,944. PATENTED FEB. 5, 1907.

R. OROMPTON. PROTECTOR AND SMASH-PREVENTING MECHANISM FOR ooms.

mm mA-mnw FILED MAY 19, 1906.,

2 SHEETS-SHEET. z.

J1 I pl 1 UN ST ES v PATENT OFFICE.

RANDOLPH CROMPTON, or v voRcEsTEn, MASSACHUSETTS, ASS-IGNOR- ToOROMPTON-THAYERLOOM coMP nY, or woRoEsTEn, MASSACHUSETTS,

A FIRM PROTECTOR AND SMASH-PREVENTING MECHANISMFOR-Looms.

spe cific'ation of Letters Patent. Application iiIed MayIQ; 1906.'Serial K013173661.

PatentedFeb'. I QQZQ To all whom; it fina concern;

Be it known that I, RANDOLPH CVROMPTONY,

acitizen of the 'UnitedStates; and a resident of Worcester, in thecounty of Worcester and State of Massachusettshrive invented an,

Improvement in Protector and [Smash-Preventing Mechanism for Looms, ofwhich the following description, in connection with the end of the layand a single'shuttle-box at the said shaft having a central dagger andat accompanying drawings;- is a specification, like letters onthedrawingsrepresenting like parts. I

Looms havinga shifting shuttle-box atone other end .of the layare-commonly provided with a single shaft at the front. of the lay,

each end a finger contacting with the usual binders. of theshuttle-boxes] Whenever a shuttle is absent from. the boX in which itshould be'for proper running of the loom, the .binder is-not thrownoutyand a spring sur rounding the. roteotor-shaftturns the atter thelayis moving forward and the loom is stopped automatically. The usualprotect ing mechanism also stops the loom if for any a reason theshuttle was eft to protrude-from the box; otherwise the warp wouldbebrokenand a warp smash would occur.

' tie-boxes at either end and means embody ing my and the improper Theobj'ect of this invention'is to prevent a loom from being startedwhenever'the' operae tor in supplying-a shuttle fails to place theshuttle in the taken that is to be replaced. J

The mechanism to be herein described with which I have embodiedmyinvention is also so constructed that it serves the purpose of the usualprotecting mechanism to protect against the absence of a shuttle fromits box boxing of the shuttle to' thus avoid warp smashes. I Figure 1 incient portion of the lay of'a loom with shutinvention attached to thelay. V Fig. 2 is a top or plan view thereof, said figure also showingpart of the breast beam, the lever it should occupy as box from whichthe shuttle was front elevation shows a suffiofthe lniockeoff motion,and part of the shi el -handle; Fig. '3 is adiagram showing t e- I ay,,the breastrbeam; and-lever referred to forming part of the knock-'ofimotion in section, together with-the cam-shaftand' means actuated:thereby for operating theidaggers' alternately to place -them in theirinoperative position; *Fig' 4 isa detail tobe referred to in theoperation of the protector-rods; Fig-.- 5 shows'part-of the lay andprotector-rod H chiefly to illustrate the spring for moving'the 1protector ro-d in one direction.-'./

' represents. .65 the layeb'eam, carried by the arms A ,Inountedas'usuali-n the'l'ay-fraine. This My has, asshown at its left haridendyFigs. land 2, suitable guideways in which-is shown as slid- 4 ing adrop-boX B,'containing, as represented; .7 four'cells, saidbox'es' inpracticebeing raised and; lowered by any usual shuttle boreshifti-Referring tothe drawings, A

- mg mechanism common to drop-box or fancy looms and controlledbyapattern-surface. Each of the cells of the-drop-boig. has itsownshuttle,- and the shuttles'are thrown from the drop-box to thesingleibox B at the-frighthand 'endof the-lay by any usual pickerstick,as B i, when the shuttle-box. occupies a --position atthe level of the.race of. the lay. The single shuttle-box B has a picker-stick B 'tothrow the shuttle therefrom back across the lay into the empty cell ofthe shuttle-box. The shuttle-boxes have u sualbinders'a' b. p 7 In frontof the layinjsuitable bearings a and a a're mounted twoprotector-rods'a, b Each of these'protector-rods has afinger 2 or 2 andsaid fingers act, res'pectively, against the binders a b in usualmanner. I j The protector-rod a has a dagger f,- and the protector-rod ba dagger e} and each protectorrod is surrounded by a suitable spring,

- The protector-rods a b have -applied to them,

respectively, arms a c said arms being fixed to said rods by suitablescrews 10. The rear roc endsof these arms have. projecting pins 4,(see'Fig. 2;.) that enter slots in ears 12 atoPpoj site ends of a leverc pivoted etc on anear depending from the bear ng a. Thislever c 'isconnected by a link with one end of a lever 0 mounted on a stud c of abracketsuit-ablysecured to the loom-frame. The

lever has a roller or other stud 7, that enters a cam-groove 8 in a camvc fast on the usual cam or cross shaft C. As the cam is rotated itmoves the lever 0 and through the link c tips the lever a about itspivot, and consequently turns the protector-rods c 12 alternately, eachprotector-rod beingso moved that at one forward beat of the lay onedagger is elevated, the other dagger being elevated at the next beat ofthe lay. In otherv .words, when one dagger is lifted the other islowered, and vice versa.

The breast-beam D has at one "end the I usual slotted and notched plateD, in which moves-the usual shipper-handle D said shipper-handle beingpartially shown in Fig. 2 in. the position it will occupy when the loomis running. 2 also shows a knock-off lever D pivoted at D*, said leverwhen struck by either dagger, as will be described,

. usual stopping mechanism to stop. the loom.

The shipper-handle and stopping mechanism are not of the essence of thislnventi'on, and

' and stopping mechanism can be used.

The. can]. referred to is constructed and timed to depress the daggercooperatingwith the shuttle-box at the opposite. end of the loom fromwhich the shuttle is thrown, so that said dagger is placed in itsinoperative posi tiondurin the forward beat of the lav as long astheloom is running properly, or, in other words; when the shuttles areproperly boxed one or'the"other of the daggers-viz., the daggerfarthest-from the end of the loom where the shuttle starts-is depressedinto its inoperative position as the lav is being moved forwardl by theusual pitman 1), connected with the crank-shaft pfsaid daggers beingdepressed alternately, according to the direction of the flight of theshuttle-and b v meansindependent of the binders that work through thelingers ofthe protector-rods to lower either detector-rod and place itsdagger in its operative position to stop the loom whenever a shuttleabsent from'the shuttleboX. that it should occupy when the lay is beingmoved forward.

The two protector-rods each having its own dagger and binder-fingers notonly effect, as usual, the stopping-of the loom in' the usual mannerwhenever a shuttle falls to I,

enter its proper shuttle-box, but also to stop the loom whenever ashuttle is not properly boxedthat is, whenever the shuttle extendsoutwardly from the box into the shed.

' consequently need not be further described more than to say that anyslnpper handle' loom s not stopped.

In accordance ,with this invention 1 have provided suitabledagger-depressing means, herein shown as a cam c, lever '0, link 0, andlever c for operating the two protectorshafts, so that in case theoperator fails to re-' It will be understood that the shiftingshuttle-box at the oppcsite end of the loom presents an empty cell inline with-the raccway of the lav, and consequently the bindera of thatempty cell will occupy its inward position and the spring a of'theprotector-red (L will raise the daggerf, (see dotted lines, Fig. 3,) sothat as the la v is moved forward in such conditions the dagger wauldmeet the lever D ,"knock'ofl and stop the loam. This of course has to beprevented, and consequently while the shuttle is being driven fromthesingle-box end of the lay across the vla v to enter the empty cellCfti'lO'IDUKitblG shuttle box the cam referred ta, acting througl'i themeans described, turns the protector-rod a and depresses thedaggerfl'rom the position shown in dotted lines, Fig. 3, into a positionbehind, the dagger e, which isde pressed by the shuttle in the cell ofthe single box, so that the loom is not stopped.

i-tssuiningthat the shuttle is to be thrown from a cell of the shiftingshuttle-box, the shuttle, throughits binder r1, acting on the finger 2of the protector-rod a, will turn that red and depresstho dagger f, andinasmuch as at this time there is no shuttle in the single box at theopposite end of the lav the spring I) of the protector-rod b actingnormally, will turn said rod, raise the dagger e, which if not preventedwould stop the loo-n1 atthe nextdorward stroke of the lay; but thisstopping \of the loom is prevented by means of the cam and the devicesactuated thereby that turns the'protoctor-rod 1) independently iii adirect'on to depress the dagger 0, so that the j It will be understoodtherefore, that these daggers are depressed alternately positivelyduring the operation of the loom/by the dagger-ilepressing means, saidmeans acting to depress the dagger farthest from the end of the loomfrom where the shuttle starts. If for any reason a shuttle has to beremoved from the drop-box end of the loom andashuttle supplied in itsplace, the shuttle 11st be placed in the cell of the dro box fro whichthe shuttle was taken,

an so, also, if a shuttle is taken outof the singl box of the lay theshuttle-must be replaced in that box ;'otherwise the loomcannotbestarted. r I

It be .obvio1 1s should asliuttl'e that failed for anfifieason beremovedfroma, cellof the drop-boxind be replaced in the single shuttle-boxfandsho'uld bethrown therefrom fro I pick, for thee "pt box ward position,

that the shuttle leaving the? ingle box could not enter ajcell of themovab ebexifforfany reason" the boxes were moved\th.l'q: lgh thepattern-surface, etweenf one and the next under such a condi-.

tion would beout oil w th the 1st R ofthe race. If, for instance hehuttle shod f ;be re-- moved 'from-oneof th cells of the dr p box,

at theend'of the lay .and janot er shuttle to 4 take its'jplaee shouldbe applied to the singlebox end oi-zthe 'lla" thebinder of thesing-lebox end of'the ay would be moved out-e wardly,thus depressing thedagger e; but the binderin the empty .cell of the drgp-box at theopposite end'oi the'lay oeenpymg its in-- permits/thespring a on the"pr'otectorro'd to raise the dagger f, so that the loom willbeinimediately knocked off at e the next fewa'rd beat of. the lay.

I cause in: the

If thf .sh ttles fail from any single-box end of'th'e'lay and theoperator should shoot a shuttlethrough the warp into" 35 r e where theshuttle ougntto. be

surrrounding the protee the their empty cell ofthe drop-boxes in linewith the race have hereinshow b oth protectords,

' controlled by a single cam for moving the lever 0 made .and mounted asa whiflletree;

but my invention would notbe de'parted from if instead of one cam I'used two cams and setthem so as to act alternately upon like levers 0each lever being connected by a like link 0 with the rear ends of thelevers c c";

The slots in the ears 12' permit the pins-4 of the levers c c to slidein said slots as a pro- .tector-rod is'moved through the action of afinger 2 or 2* on the shuttle-binder with which it coacts. v

I believe I am the first t controljthe. protector-rods independently. othe binders and. usual stopmot'ion devices to move the daggersalternately during the operation of th turn the altern 'w a 2,. Inal.100

finger coacting with I o erationin case the sh bet 4.-

100111 and to place-either'dagger in a pos tion one o theboxesv shouldbe replaced by a shuttle 'put into the other box and conse-.

quently my invention is not limited to they particular means shown anddescribed for turning the protector-rods alternatelyto.

Iiaving described my menses, .I I claimas new and desire tosecureby'Letters raise and :lower alternately the daggers in the mannerdescribed.'-'

Patent,

ev g iW P oactlfig'wlthitheflisual binder, and means to bifmecairismcornto sto the loom in case a shuttle takclrironi 7b i dagger and.with a finger protector-rodsto place'the daggers e in their ino erativeositions, 4

bined with a lay? two protector-rods,. each prov ded with r {dagger anda finger, the

and

means. to move the pre \tge' n Wi ently to lower that dagge whichis nextto the ector-i ods independend of he lay from wine pthe shuttle starts,I

3QIn aloom having a series of drop-boxes rovide'dlwith binders, aprotector rod hav a finger coacting with each of said ,binders,-and adagger, and means to turn said rod independently of-thebin'der to putits dagger;

iii-position to enable the lpoin to continue in ttlevcoming into themply cell of the move;

properly boxed, n

orie end thereof and a single boxv at its op- ,p site end, saidboxeshaving usual binders, a air of protector rods each provided with aagger, and means independent of the bind-l le' shuttle-box fails A -9 aloom-,- a ;lay..having drop-boxesat ers to place one of said aggers inposition to stop 'the loornin case the operative places ashuttle in anybox except that fromwhich theshuttle to be replaced was. taken.

/ In a loom h ving drop shuttle-boxes atone end, a protector-rod havinga dagger that is put into loom-starting position in case the shuttleoisabsent from the shuttle-box,

and independentmeans for moving said. proteeter-rod to stop the loommcase' theslnitfore starting the-loom. v

In testimony whereof I haveslgned my .name to this specification in thepresence of.

twosubscribing witnesses. p RANDOLPH CROMPTQN.

Witnesses;

1 CHARLES F. ALDRICH, Rom. C.'DOUGLA S tle has .not been applied to itsproper cellbe-

